Trolley-wire holder



Mar.. 13, 1923. n '1,448,437

M. DUNLAP TROLLEY WIRE HOLDER Filed Oct. 14, 1922- Patented Mar.. 13, 1923.

MARVIN L. DUNLAP, on PHILIPSBURG," PENNsYLvAnIA) TROLLEYW'IREHOLDER; l

Appiieauonaiedcctober 14, 1922;. serial no. 594,490@

To allcvzioma'tfwmy concern:

Beitpknownfthat ;[',.MAnvIN L. Dumber,

citizenv ofl` the UnitedStates. residing at' This invention' relates to trolley7H wire f' holders and has vfora'itsvobjectlto provide a4v device Y of this characterr'wherein the trolley' wi're maybef-attachedfand detached from the holder'- without removingv thef holder.` fromy yits support i and without damagingmftheA` holden i It is "also aniobje'cti ofwthei invention to. provide a-device of this characterfcomposed r Thel lower-.face of thebodymember is` provided with .a longitudinally@extending i recess 11, said recessb'eing transversely curved toA receive aportion ot ay trolleyy 60 wire/A.-

The side portions 12 and .13' of-the'body -ff memberarefifprovided withi outwardly; p'rozf` i p jecting flanges .14 and $15. The upper-faceA oireach' flange-lscut away: to lprovide lips65 lzand 17 which extend ytoward the socket mem-ber, the: outerv face! `18 ofeach Hanges being curved., By the. formationaot the lips` arecess- :18a yisr substantially formed between the sides ofthebody member andthesinner 70 face of the lipsi'oranpurposeito be: h-erei-n-V f after described..

lili-'connection witlrthe bedy-l. member or: l

main section of thevholder;asecondssectiona p or! holding memberI 19 isf: prwided;*Thea75 of'secti'ons adapted to embrace a: trolley holding-m'em-berw` consists otvany elongated;

wire. f

Itis a further object-,of therinventionpto" provide aadevice; of: this!character-:whereinonee section is arranged for connection4 toY a` support and another. section-i arranged-. for' inr icrossfsection.4 said holding member tapers. ing-from its lcentral 'portion to; eachfgend'i length'o'f material substantially U-.shapede fr thereof soas `to reinforce saidwcentral'porfvso detachable connection] to" thel supported section: i

With these andwother objects in view, the invention ,consists in the-improved ;construc4 tionv and arrangement: ofr parts` tobe here inaftermore2 particularly-;descri-bed, fully*- claimed and 'illustrated in the'accompany-ingy` drawings, in which Figure 1 is a sideelevationl off a: trolley wire holder constructed in acco'rdancerwitlr. an embodimentioff'the invention;

Figure 2 is a longitudinal sectional view of the structure shown in Figure 1; and

Figure 3 is a section taken on the line 33 of Figure 2.

Referring to the drawings` 5 designates an elongated body member which forms the main section of the holder. Projecting from the central portion of the top of the body member 5 is a socket member 6 which is interiorly threaded for connection to a trolley wire hanger or like supporting means. It it of course obvious that this holde'r can be used independently of the hanger. The 'upper portionl of the body member 5 tapers downwardly from the socket member in opposite directions to the ends thereof. Each end portion of the body member has a threaded socket 7 for the 'reception of a set screw 8, said set screw having a. lock nut 9 engaged therewith and with the body member to lock the set screw in position.

tion-.a The xlongitudinal `edges 20 and 21 a are disposed :substantiall-yin isp'acedr parallel fre-f .i a

'lati on4 `ttoO each other. The; intermediate por tion-fot'fthersides -22 and' 2li-oft theflioldingmember: arey enlarged; and ce'C,istriuzted1.tosy 85 provide a substantially c ircularrecess 2.4.y adapted tocoact withtherecess 11 to pro,- vide afcircudar passage for theart'rolley' wire A. VT-hV atrportioniof each ofethersides 22 and 28, inw a-rd'lyx ot :the ledges" 20,' and 21; `is 'pro-a 90 vided with@ lungi-t;udinally.Y extending groove 25, 'said groove providing shoulders 26 and 27 adapted to engage the lower `lace of the flanges 14 and 15 of the main section.

The inner wall 28 of the groove 25 is curved 95 -f in accordance with the curvature ofl the outer faces of the anges 14 and'15. The

upper walls 29 and 30 of each groove 25 are 1 under cut to provide lips 31 vand 32 adapted to enter the recess and 15.

In the application of the holder the main section 5 is attached to the hangeror suspension means and the trolley wire placed within the groove 11. The holding member 19 is then applied to the wire so that thewire rests upon thebottom of the recess 24. The holding member is then moved longitudinally toward the adjacent 'end 0f the body membe-r so as to permit the flanges 14 .110 yand 15 of the body member to enter the grooves 25 and permit the interengagement 18a of the lianges 14 100 oi the lips 3l and 32 and the lips 16 and l?. rI'he longitudinal movement of the holding member is then continued until the ends of the holding member substantially coincide with the ends of the body member, thereby lirmly clamping the wire and permitting the device to entirely surround the wire. rllhe set screws 8 are then tightened so as to bind the trolley wire A within the passage and prevent relative movement of the holder and the trolley wire. vrThe tightening of the trolley wire within the device by means of the set screws also permits clamping ot the holding member on the lips ot the flanges in view of the pressure vofthe trolley wire on the arm of the holding member. Should adjustment off trolley wire holder which is simple in oon- `struction, capable of entirely surrounding the wire and holding the same against movement, and wherein the holder maybe applied and removed 'as often as necessary without damaging the holder or the wire and without destroying the clamping function oit the device. All of these features are possessed by `a device whichis simple in construction and which requires onlyl a small amount ofeliort and time on the part of the operator to apply. yThis device is also adapted for use in mines.

vWhat is claimed is l. Al trolley wire holder comprising a body member having a longitudinally eX- tending recess in its lower face', a `flange projecting from each side portion of the holdmasas? ing member adjacent the lower face ot the holding member, each of said flanges having an upwardly projecting lip, a holding member having a longitudinally extending channel, said holding member being open at its upper portion, grooves formedin the side walls of the channel adjacent the upper portion of' said holding member, lips depending from the upper walls of said grooves, said grooves being adapted to receive the anges of the body member, the lips of the body member being adapted toV engage the lips of the holding member, the channel of the holding member coacting with thev recess of the body member to provide an uninterrupted substantially circular passage for a trolley wire.

2. A trolley wire holder comprising a body member having a longitudinally eX- tending recess in its lower face, a. flange projecting trom each side portion of the holding member adjacent the lower face of the holding member, each of. said flanges having an upwardly projecting lip, a holding member having a longitudinally eX- tending channel, said holding member being open at its upper portion, grooves formed in the side walls of the channel adjacent the upper portion ot said holding member, .lips depending from the upper walls ofsaid grooves, said grooves being adapted to receive the flanges of the body member, they lips ot' the body member being adapted tok engage the lips of the holding member, the y channel of the holding member coacting with the recess of the body member to provide an uninterrupted substantially circular passage for a trolley wire, and fastening' means carried by the body member and adapted to engage the trolley wire within the passage. v In testimony whereof I hereunto alii; my

signature.

MARVN' DUNLAI. Y 

